The article intends to contribute to setting forth a hypothesis to explain some of the changes in the structure of social classes during the Lulism decade (2003-2013). The enhancement in living conditions for approximately 40 million Brazilians led to a reconfiguration in several points of the society, all the way from alleviating the survival conditions of the sub-proletariat, to the upsurge of a small new middle class, going through the emergence of a vast new sub-proletariat, a variety of transfor mations particularly attained the popular layers of society. The article seeks to present initial interpretations regarding these diverse phenomena.
classes; lulism; social ascension